Variable | β | Robust SE | p-value |
---|---|---|---|
Age (years) | |||
Age >36 versus ≤ 36 | –93.6 | 37.7 | 0.02 |
BMI (kg/m2) 18.5 ≤ BMI < 25 (reference) | − | − | − |
BMI < 18.5 | –162.2 | 48.0 | 0.001 |
25 ≤ BMI < 30 | –59.0 | 72.7 | NS |
BMI ≥ 30 | –142.3 | 48.6 | 0.005 |
Number of attempts | |||
3 and 4 versus 1 and 2 | –148.8 | 51.3 | 0.005 |